Sulky-plow.



H. P. CURTRIGHT, DECD.

u. B. CURTBIGHT. Anuxxlsranaxx.

SULKY PLOW.

APPLIUATION FILED xu 3.1909.

Patented May 17, 1910.

H. P. CURTRIGHT, DECD.

M. B, GURTRIGHT, ADMIIHSTHATRIX.A

SULKY PLOW.

APiLIoATmN FILED KAY 3,1909.

Patented May 17,1910.

2 SHEETS-SHEET 24 Y UNTTED STATES PATENT OFFICE.

'HARRY P. CUBTBIGHT, 0F HOLLIDAY, MISSOURI; MARY B. CURTRIGHT Aliin'lill- TRATBIX F SAID HARRY P. CURTRIGHT, DECEASED.

.sULKY-PLOW.

Specification ol Letters Patent.. Patented May 1 191.0.

Application tiled Hay 3, 1909.

Serial No. 493,659.

fof liliseouri, have invented new and usefullE ,o tural imp other tool Inny be properiy guided and sup- 13. lifted clenr of the ground, thereby ennbl 2- other tool mag' yvith the porting wheels, means is provided for varyto the rear of the frame.

Im movements in Sulky-llows, of which the i fol owing is n specilication.

Myprescnt invention relates to improvements iu pelows, harrows and other agriculments of the type embodying e sulky or wheeled frame whereby the plow or ported while operating on the soil and whenever desirnble the plow or other tool may be the implement to be readily transported, :irli l it has for its object. primarily to provide an improved apparatus of this class whereby the frame supporting or carrying the plow or en'st facility be bodily lowere or elevat in order to setthe plow or tool in operative and inoperative positions with rcs )ect to the ground, and alec the land and xrrow sides of the frame are capable of independent elevation or. depression as may be desirable or necessary, andmoreover. in the present instance wherein the iront and rear ends of the frame are movable vertically with respect to their suplng the elevation of the front with respect To these and other ends, the invention consists in eertainimprovements, and combinations and arrangements of Aartes, all as will be hereinafter more fully escribed, the I lovel features being p'ointed out pzirticu- .iarly in the claims at the end of thc'specitcation.

In the accompanying drawingi Figure 1 represents a side elevation of a sulky plow constructed in accordance with my present l invention, the plows being shown in this instance as lowered; Fig. 2 is a top plan view of the plow shown in Fig. l; Fig. 3 is a detail sectional view of the shaft which supports the land side wheel, the trendlcs which operate the Shaft, and the lever and rclntcd devices which operatively connect thc shaft of the land side wheel to the-devices which 'control the elevation of the furrow sido and l *ear of the frame; Fig. 4 is a detail sectional inw f the furrow Wheel showing the operating: connections between its standard and the furrow side of the fr axne; Fig. 5 is a detail view of the Sector for locking the controlling lover in its differenty adjusted positions; Fig. 6 is n detail view of the sector which motie-cts (lic controlling lever to the shaft for the hind side wheel; :md Fig. T is :i detail view of the sector which forms nn adjustable connection between the controlling lever and the standard of the furrow wheel, this vicw also showing thc bracket which supports the tongue. Similar puits aire desigimted b v the sume reference chnructers in the several views.

The present invention is applicable 2generally to plows, hnrrows :und other :unit-ub tural implements of the typo embodying n wheeled carriage or .sulity which serves to guide the plows or other tools und thus ngc their depth :is they pass through the soil und also to support flwm clear of the ground whenever it is dai-sirnble or mxtcsszlry to 4transport the machine, for instance. from one field to another, und the profi-nt invention provides improved menus for adjusting either the land side of the frame independently of the furrow side` the furrow side independently of the hind side. :mii the front independently of the renr of the frame or the frame may be bodily adjusted by the operation preferably of u single lever or part.

ln tht` drawing, l have l hown ono embodiment of the invention wherein thc sume is applied to n snllty plow. lt. will he understood. however. that l have shown but one embodiment of th(` invention ns en example, and that certain modifications und changes may be made therein in order that the in- .vcnlion muy be applied to thc best advantage in each particular cnsc.

ln the present instance. thc apparatus comprisesl gener-:illy n from( l having one or moro plow .slnndnrd .4 depending therefrom und carrying the plow shores two plow hurt-.s forming u gung bein;r .shown in the 'present instance als :in example. The. frame is supported by n lnnd whccl l nud front und rcnr furrow wheels 5 and t. und the forward 0nd of thc frnmc muy be provided with :i draft :appliance 'T lo which the horses or other draft. moons may be attached.

The land wheel 4 is. in the present instance e journfdcd upon :i crank Swhich is formedv as n port of n transverse Shaft Sl. the lutter lining journnlcd in nyuvioprune bearings he pres-eur instance, e

bracket l() projects laterally from theland may be'provided which as shown forms a side of the. 'fi-aine and is provided with a i bearing ll in which the shaft 9 is journaled,

and the opposite end of the shaft is journalcd in a bearing 12 formed by a bracket 13 which is bolted or otherwise secured to the furrow side of the frame. this bracket being provided with a notched or toothed sector 14 to serve a purpose to be hereinafter described. To thc shaft i) are tix/Id a pair of treadlcsl 15 and 1t?. the treadle 1.7 being preferably arranged outside of the traine and at the land side and normally projectA ing downwardly below thc plane of the frame while the treadlc 1G preferably extends upwardly from the plane of the frame, these two (readies being arranged substantially in dianietricaiiy opposite relation and both are within convenient reach of the feet of the operator when seated uponthe ap iaratus. The weight of the land side of t ie rame wili. obviouslv, tend to depress it and in order to substantially balance thel weight, a tension spring 17 may be attached at one end to the treadle 16 and at its opposite end to a stationary part of the frame. The shaft 9 may extend either below or above the frame, although it is generally preferable to arrange it above the plane of the frame in order to provide ample clearance. That end of the shaft 9 which extends to the Afurrow side of the frame is rovided with a crank which in the present instance is in the form of a sector 18 which is fixed to turn with the said shaft` the end of the shaft for instance being angular so as to fit into 'a corresponding opening in the sector 18 and thereby produce a positive connection between them. The 'rear portion of the frame is provided with a bracket 19 which has a square or other angular opening therein which extends vertically and forms a sliding fit with a standard 20 which preferably has a corresponding angular cross section and its lower end is appropriately bent and formed into a journal 21 on which the rear furrow wheel -t is mounted. In order to vary the elevation of the rear part of the, frame with respect to the ground, I rovide in the present instance a bell-crank 22 which is pivotcd at; its intermediate 'point to the bracket 1;, while one of its arms, the arm 23A in the resent instance, is pivotally attached to a ink 24, the latter in turn bein ivotail connected to the upper portion ottrie stands-I ard 20. The other arm 25 of the bell-crank is pivotnlly connected to an operating rod 26 and in the present instance a pushing of the rod 2G ,toward the rear of the framel will, obviously, turn tlie-bcll-ciank in a direction to pull the link 24 downwardly and thereby produce a lifting of the rear of the frame.

' In order to balance the weight. of the rear portion of the frame, a tension spring 27 connection between the upper endof the standard 20 and the rear portion of the frame.

The forward portion of the frame is supported by a forward furrow wheel which is journaled on the lower end of an appropriately foi'nicd standard 28, the latter being arranged substantially vertically in tlie present. instance and is of angular cross section to forni a sliding tit `in a bracket 29 which is secured to the furrow side of the frame. In order to vary the elevation of the fon ward land side of the fraine with respect toV the ground, l provide a suitable operating connection between 'the forward furrow wheel 5 and the frame, this connect-ion 1n the present instance consisting of a pair of reversely arranged cranks 30 and 31 which are connected by a shaft 32 journaled in bearings formed by the bracket 2;), the crank 81 being pivotally connected to a link 33 which in turn is connected at its upper end to a part of the standard 28 While the crank 30 is connected to an operating rod 34. A tension of the rod 34 will obviously turn the cranks 30 and 3l in a direction to tension the linl, 33 whereby the forward furrow side of the frame will be elevated. The weight of the. forward furrow side of the frame tends to depress it and in order to ap` roxmately balance the weight and therey neutralize this tendency and facilitate the adjustment of the apparatus, a balancing spring 35 may be connected at one end to the crank 30 and at its opposite end to an appropriatel stationary part of the frame.

In the mechanism shown in the present in-A stance for connecti the forward furrow wheel to the frame, provide means which also enables the elevation of the forward furrow side of the frame with respect to the rear furrow portion thereof to be varied,

such adjusting means consisting in the prestached to this lever and the latter carries n dog 39 whereby the position ofthe frame with respect to the standard 28 at a given adjustment of the cranks 30 and 31, may be varied. The bracket which forms 'the sector 3G is in the present instance provided with a part which provides means for the Y attachment of the tongue 40.

The present invention.' provides meanswhereby an independent adjustment of either the land side or the furro.. portions of the frame may be accomplished, and -also` the frame may .be bodily7 elevated orjd'- pressed. I have shown in the present instance a single operating and ctmtrollin r lever 4l which is capable of prodtnsing these results. this lever being loosely mounted at its lower end prcferablj' on the `".liatt il as a fulcrum and it carries a pair of dogs 42 and 43 that are arranged at opposite ,sides there of and are cooperative with the sectors t4 and 18, respectively, the dog 4:2 having t. trip 11i while the dog i3 has a trip -l.'r. both of these trips being preferably carried by the operating and controlling lever whereby they may be conveniently manipulated. The Operating rods 20 and 3l which serve to actuate the adjusting means for the furrow portions of thtl frame are both pivotally connected to thc lever -ll either at a p )intabove or below the frame, the)r being shown con- \nected above the frame. in the present instance, such arrangement. being generally preferable, as these rods when so connected do not. interfere with thtx clearance space beneath the frame.

The frame may be bodily elevated and depressed by releasing the dog t2 h v pressing the trip 44. As the lever -ll is connected to the shaft, 9 carrying the land wheel throu h the sector 1S and dog 43, and as the same ever 41 is connected to the adjusting means which forms the operative connection between the front and rear furrow wheels and the frame, obviously a forward or rearward movement of 'the lever ll will cause the frame to be bodily elevated or depressed according to the direction in which the. lever is moved, a rearward movement of this lever toward the operators seat being preferably used to elevate the fraaie for, h v such an arrangement, the necessary etlort to elevate the frame may be more conveniently applied, although the frame is counterbalaneed more or less by the balancing springs. n indendent adjustment of the forward furrow side of the fraxne ma)-Y bc accomplished by the lever 38, a lifting of this lever serving to increase the height of this portion of the frame while a downward movement of the same lever will depress the forward furrow side of the t'rame although normally this lever is locked in the desired adjusted position through the sector 36 and the dog 9.

.The land side of the frame mabY be elevated or depressed independently of the, turrow side ot' the. frame, that is to say, while the adjusting means for the furrow side of the frame remains locllred. This result may be accomplished b v releasing the dog 43 by pressing the trip 45, while the dog 42 remains in locked engagementwith the stationary sector 14. The releasing of the dog '43 permits the sector 18 to turn independentlj7 of the lever 41. and the operator by pressing upon the treadle l5 may elevatel the and side of the fratrie., the weight or the frame, while the dog 43 1s released serving to depress the land side of the frame, a reloclting of the dog 43 with the sector 18 again connecting thtl various' parts of the frame for simultaneous adjustment.

l claim as my invention:

l. .\n agricultural implement comprising a l'ramc to carry the ground engaging tools` front and rear furrow wheels` and a land wheel. means for guidingY the frame for rec ilint-ar vertical movemut with respect lto `mid front and rear furrow wheels.y and a common operating part carried b v the frame and operatively connected to, the fropt and rear furrow wheels and operative to elevate or lower the front and rear of theframe with respect to .said furrow wheels.

2. An agricultural implement comprising a frame to carry the ground engaging tools, forward and rear furrow wheels and a land wheel. lguides` forinsuring rectilinear vertical movement. of the frame with respect to the forward and rear furrow wheels. operating devices connecting the said furrow wheels with their respective guides, anda common operating part connected to said operating devices for the forward and rear furrow wheels and operativeto simultaneouslv elevate or depress the frame with respect to said forward and rear furrow wheels.

3. An agricultural impicment comprising a frame to carry the ground engaging tools,

front and rear furrow wheels and a land wheel. thc frame being capable of vertical movement with respect to said wheelsl it shaft connected to the land wheel, lifting tlcvices for the front and rear furrow wheels., a common operating part having means for connecting and disconnecting it with respect to said shaft and to the lifting devices for the furrow wheels. means for locking the said part while the land wheel is discon-v nected therefrom. and means carried bv said shatt for elevating or depressing the land side of the frame while said common 0'1- -erating part; is locked.

4. An lagricultural implement comprising` a frame to carry the ground engaging tools, a land wheel, front and rear furrow wheels, sald frame being capable of vertical movement with respect to all of said wheels, a\ shaft connected to the land wheel, a commonoperating lever connected to the two furrow wheels and havin means for connectinfr and disconnecting 1t with respect to the sald shaft for the land wheel, means for locking the common operating lever for movement .while disconnected4 from: said shaft, and means for turning said shaft to adjust the land side of the frame while said common operating lever is in locked condition. j

n agricultural implement comprising a frame to carry the ground engaging tools, frontand rear furrow wheels and a' land wheel, said frame being capable of vertical movement. with respwefJ to all of sail .rheres. 1'

a common operating lever operatively #nn- Iirrtirl lo all of aid wheel and rapahln of simultaneously elevating or lowering the frame bodily r. ith rvflpert thereto. and mean:V for indft-pfndrnilj.' elevating or lowering a portion of the frame with respect to one of said furrow wheels.

(3. An agrirultural implement Comprising a plow carryingr franm, fromA and rear furrow wheels, a land wheel, a trmiii'crse shaft journaled on the frame and havin a crank coperative with the land wheel, t ie frame being capable of vertical movement with respec-tv to said wheels, lifting devices c'onneet-ing the front and rear furrow Wheels lo the frame, a common operating lever loo-1e! y mounted on said shaft and operatively connected to the said lifting devices for tho front and rear furrow wheels. a sector fixed to said shaft. means carried h v the said lever -for connecting and disconnecting it,

-witli respect o said sector, and a treadle carrie-d b r'said .haft whereby thtl land side of the frame may herlevated or deprecd independently of the furrow side thereof.

7. An agricultural implement comprising a plow-carrying; frame, a land wheel and forward and rear ,lrrnw wheels, the frame Abeing capable qf ve tical :ro-rement with re spect. thereto` an operating lover connected to both furrow Wheels, @cranked shaft. connected lo the land wheel, means for connor-,ting and disconnecting said cranked shaft with respectV to said operating lever, and means for locking said lever in rlitl'ercnt ad justed positions. I

8. An agricultural implement wrnprising a plow-earring frame, land wheel and forward am )fear furriv Wheels, the frame being capable of vertical movement with respect thereto, an operating lever connected to both of said furrow Wheels, a shaft. connected to the land wheel, a sector rotatable with said shaft, and means carried by said lever and cooperative with said sector for adjustahly and detachably connecting the lever tu said shaft.

u n n 9. An agricultural implement comprising a pIoW-carryinor frame, a land wheel v11nd front. and rear nrrow wheels, the frame ne of the front and rear portion of rive "supported by the furrow arnet-is. a t..

Firming l: 21511:@ nur aft :i i'wai n! trame and ind.zw rnl -niy carried by said irrrr ff to either our rw hath of saisi lil. Ar. agricultural implwfszt'wwf a 3 ri.wr'arr},'ing trarne, .ff-raars? furrow wher-is and a lafr when! Shaft iarrying th. lfm-:l wlmi-i, (inviifor elevating the foi-ward and ri-ar :fur-:ions of the frame with rwsgfeat tothe urr'" ai',

minion operati.

dei :tes for elevata to 'uoth of tlv; furrow when a to said shaft. a sxationary aegzn indeprnrlentljf' onf-fable logs 1:' :rif 1%..

lever for electiri; either an rdf-.1i a simnltanseouf, ad; '-:trnrnt of ":a furrow sides of the frame.

11. An .'-igriraitnral implement wrap.' a plow-carrying frame, a limi? irhffei thereof and front. and wheels. a rranl; shaft emplear with respect. lo ihe land wheel, Infarkt" the frame for guiding the Haine f moraine-ni with rit-spout tn -zzv furrow anni furrow .s'hoclq having .elsznflarda able. in said brackets, 'avia-es nrwherztn: tiiove portion: of the frame warring.: la'furknts, Springs for balancing the wr# ing:r spring for the land :tide ci ha fra.

and a common matr-'111mg lever l=.,sving means for connecting and disconnecting it.

with .res'prct to the land whe/ and parini ting an independent aeijasimffni or" 'rtw land and fnrznw sides' of thea frame and :also rapahle of bodily adjufating bei?. aidez' of the frame.

ln treszlimony whereof I hare hereunto set t?? y hand in presence of two Subscribing wit,-

HRRY P C URTRGHT,

Vs'itnesses: 4 l

FRAM; im.,

DAN. H111.. 

